CAT1 — Zea mays

Summary

ZM00001EB002510 (ZmCAT1) on maize chromosome 1 encodes a catalase (EC 1.11.1.6) and is also annotated with S-nitrosylase, nucleoside diphosphate kinase, histone acetyltransferase, and protein kinase activities. The protein localises to the peroxisomal lumen, tonoplast, chloroplast envelope, and apoplast. ZmCAT1 is associated with cellular response to hydrogen peroxide, cellular nitric oxide homeostasis, ear development, and zeatin anabolism, glycine betaine anabolism, and melanin anabolism. It has been linked to numerous agronomic traits including leaf area duration, ear diameter and length, anthesis-silking interval, grain filling period, seed yield, biomass yield, leaf chlorophyll and carotenoid content, sugar and proline content, nitrate uptake, auxin content and sensitivity, salt response, and chilling sensitivity. Associations with programmed cell death, chloroplast biogenesis, photosynthesis, and water use efficiency are also noted.